I agree that they don't need to know the "who", but it is perfectly understandable that they want to know "what" is being installed. And as part of the "what", they would want to know on which platform, and whether the install succeeded or failed, and probably a few other metrics about the install to ensure that things are working correctly and identify gaps that should be filled.

Based on what I read on the site, that looks like exactly what they are doing, and they are explicitly NOT storing information that would identify "who".